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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.148 by root, Wed Jun 17 01:14:48 2009 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
8		12
9	#include <stddef.h>	13	#include <stddef.h>
10	#include <stdlib.h>	14	#include <stdlib.h>
11	#include <errno.h>	15	#include <errno.h>
12	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
13	#include <sys/stat.h>	18	#include <sys/stat.h>
14	#include <limits.h>	19	#include <limits.h>
15	#include <fcntl.h>	20	#include <fcntl.h>
16	#include <sched.h>	21	#include <sched.h>
17		22
		23	#if HAVE_SYS_SYSMACROS_H
		24	# include <sys/sysmacros.h>
		25	#endif
		26
		27	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		28	# include <sys/mman.h>
		29	#endif
		30
		31	/* the incompetent fool that created musl keeps __linux__, refuses
		32	* to implement any linux standard apis, and also has no way to test
		33	* for his broken iplementation. don't complain to me if this fails
		34	* for you.
		35	*/
		36	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		37	# include <linux/fs.h>
		38	# ifdef FS_IOC_FIEMAP
		39	# include <linux/types.h>
		40	# include <linux/fiemap.h>
		41	# define HAVE_FIEMAP 1
		42	# endif
		43	#endif
		44
18	/* perl namespace pollution */	45	/* perl namespace pollution */
19	#undef VERSION	46	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		47
70	/* perl stupidly overrides readdir and maybe others */	48	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	49	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	50	#undef readdir
73	#undef opendir	51	#undef opendir
74	#undef closedir	52	#undef closedir
75		53
		54	#ifdef _WIN32
		55
		56	// perl overrides all those nice libc functions
		57
		58	#undef malloc
		59	#undef free
		60	#undef open
		61	#undef read
		62	#undef write
		63	#undef send
		64	#undef recv
		65	#undef stat
		66	#undef lstat
		67	#undef fstat
		68	#undef truncate
		69	#undef ftruncate
		70	#undef open
		71	#undef link
		72	#undef close
		73	#undef unlink
		74	#undef mkdir
		75	#undef rmdir
		76	#undef rename
		77	#undef lseek
		78	#undef opendir
		79	#undef readdir
		80	#undef closedir
		81	#undef chmod
		82	#undef fchmod
		83	#undef dup
		84	#undef dup2
		85	#undef abort
		86	#undef pipe
		87
		88	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	89	#define EIO_STRUCT_STATI64
77		90
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define VAL64 IV
81	# define SvVAL64 SvIV
82	# define newSVval64 newSViv
83	#else	91	#else
84	# define VAL64 NV	92
85	# define SvVAL64 SvNV	93	#include <sys/time.h>
86	# define newSVval64 newSVnv	94	#include <sys/select.h>
		95	#include <unistd.h>
		96	#include <utime.h>
		97	#include <signal.h>
		98
		99	#define EIO_STRUCT_STAT Stat_t
		100
87	#endif	101	#endif
88		102
89	/*****************************************************************************/	103	/*****************************************************************************/
90		104
91	#if __GNUC__ >= 3	105	#if __GNUC__ >= 3
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	111	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	112	#define expect_true(expr) expect ((expr) != 0, 1)
99		113
100	/*****************************************************************************/	114	/*****************************************************************************/
101		115
102	static HV *stash;	116	#include "config.h"
		117
		118	#if HAVE_ST_XTIMENSEC
		119	# define ATIMENSEC PL_statcache.st_atimensec
		120	# define MTIMENSEC PL_statcache.st_mtimensec
		121	# define CTIMENSEC PL_statcache.st_ctimensec
		122	#elif HAVE_ST_XTIMESPEC
		123	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		124	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		125	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		126	#else
		127	# define ATIMENSEC 0
		128	# define MTIMENSEC 0
		129	# define CTIMENSEC 0
		130	#endif
		131
		132	#include "schmorp.h"
		133
		134	#if HAVE_EVENTFD
		135	# include <sys/eventfd.h>
		136	#endif
		137
		138	#if HAVE_TIMERFD
		139	# include <sys/timerfd.h>
		140	#endif
		141
		142	#if HAVE_RLIMITS
		143	#include <sys/time.h>
		144	#include <sys/resource.h>
		145	#endif
		146
103	typedef SV SV8; /* byte-sv, used for argument-checking */	147	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	148	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	149	typedef int aio_wfd; /* write file descriptor */
106		150
107	#define AIO_REQ_KLASS "IO::AIO::REQ"	151	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108	#define AIO_GRP_KLASS "IO::AIO::GRP"
109		152
110	#define EIO_REQ_MEMBERS \	153	#define EIO_REQ_MEMBERS \
111	SV *callback; \	154	SV *callback; \
112	SV *sv1, *sv2; \	155	SV *sv1, *sv2; \
		156	SV *sv3, *sv4; \
113	STRLEN stroffset; \	157	STRLEN stroffset; \
114	SV *self;	158	SV *self;
115		159
116	#define EIO_NO_WRAPPERS 1	160	#define EIO_NO_WRAPPERS 1
117		161
118	#include "libeio/eio.h"	162	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	#endif
123
124	#ifndef POSIX_FADV_SEQUENTIAL
125	# define POSIX_FADV_SEQUENTIAL 0
126	#endif
127
128	#ifndef POSIX_FADV_RANDOM
129	# define POSIX_FADV_RANDOM 0
130	#endif
131
132	#ifndef POSIX_FADV_NOREUSE
133	# define POSIX_FADV_NOREUSE 0
134	#endif
135
136	#ifndef POSIX_FADV_WILLNEED
137	# define POSIX_FADV_WILLNEED 0
138	#endif
139
140	#ifndef POSIX_FADV_DONTNEED
141	# define POSIX_FADV_DONTNEED 0
142	#endif
143		163
144	static int req_invoke (eio_req *req);	164	static int req_invoke (eio_req *req);
145	#define EIO_FINISH(req) req_invoke (req)	165	#define EIO_FINISH(req) req_invoke (req)
146	static void req_destroy (eio_req *grp);	166	static void req_destroy (eio_req *grp);
147	#define EIO_DESTROY(req) req_destroy (req)	167	#define EIO_DESTROY(req) req_destroy (req)
148		168
		169	#include "libeio/eio.c"
		170
		171	#if !HAVE_POSIX_FADVISE
		172	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		173	#endif
		174
		175	#if !HAVE_POSIX_MADVISE
		176	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		177	#endif
		178
		179	#ifndef MAP_ANONYMOUS
		180	# ifdef MAP_ANON
		181	# define MAP_ANONYMOUS MAP_ANON
		182	# else
		183	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		184	# endif
		185	#endif
		186
		187	#ifndef makedev
		188	# define makedev(maj,min) (((maj) << 8) | (min))
		189	#endif
		190	#ifndef major
		191	# define major(dev) ((dev) >> 8)
		192	#endif
		193	#ifndef minor
		194	# define minor(dev) ((dev) & 0xff)
		195	#endif
		196
		197	#if PAGESIZE <= 0
		198	# define PAGESIZE sysconf (_SC_PAGESIZE)
		199	#endif
		200
		201	/*****************************************************************************/
		202
		203	#if !_POSIX_MAPPED_FILES
		204	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		205	# define munmap(addr,length) EIO_ENOSYS ()
		206	#endif
		207
		208	#if !_POSIX_MEMORY_PROTECTION
		209	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		210	#endif
		211
		212	#if !MREMAP_MAYMOVE
		213	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		214	#endif
		215
		216	#define FOREIGN_MAGIC PERL_MAGIC_ext
		217
		218	static int ecb_cold
		219	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		220	{
		221	int old_errno = errno;
		222	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		223	errno = old_errno;
		224
		225	mg->mg_obj = 0; /* just in case */
		226
		227	SvREADONLY_off (sv);
		228
		229	if (SvPVX (sv) != mg->mg_ptr)
		230	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		231
		232	SvCUR_set (sv, 0);
		233	SvPVX (sv) = 0;
		234	SvOK_off (sv);
		235
		236	return 0;
		237	}
		238
		239	static MGVTBL mmap_vtbl = {
		240	0, 0, 0, 0, mmap_free
		241	};
		242
		243	static int ecb_cold
		244	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		245	{
		246	free (mg->mg_ptr);
		247	mg->mg_obj = 0; /* just in case */
		248
		249	SvREADONLY_off (sv);
		250
		251	if (SvPVX (sv) != mg->mg_ptr)
		252	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		253
		254	SvCUR_set (sv, 0);
		255	SvPVX (sv) = 0;
		256	SvOK_off (sv);
		257
		258	return 0;
		259	}
		260
		261	static MGVTBL sysfree_vtbl = {
		262	0, 0, 0, 0, sysfree_free
		263	};
		264
		265	/*****************************************************************************/
		266
		267	/* helper: set scalar to foreign ptr with custom free */
		268	static void
		269	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		270	{
		271	sv_force_normal (sv);
		272
		273	/* we store the length in mg_obj, as namlen is I32 :/ */
		274	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		275	->mg_obj = (SV *)length;
		276
		277	SvUPGRADE (sv, SVt_PV); /* nop... */
		278
		279	if (SvLEN (sv))
		280	Safefree (SvPVX (sv));
		281
		282	SvPVX (sv) = (char *)addr;
		283	SvCUR_set (sv, length);
		284	SvLEN_set (sv, 0);
		285	SvPOK_only (sv);
		286	}
		287
		288	static void
		289	sv_clear_foreign (SV *sv)
		290	{
		291	/* todo: iterate over magic and only free ours, but of course */
		292	/* the perl5porters will call that (correct) behaviour buggy */
		293	sv_unmagic (sv, FOREIGN_MAGIC);
		294	}
		295
		296	/*****************************************************************************/
		297
		298	/* defines all sorts of constants to 0 unless they are already defined */
		299	/* also provides const_iv_ and const_niv_ macros for them */
		300	#include "def0.h"
		301
		302	/*****************************************************************************/
		303
		304	static void
		305	fiemap (eio_req *req)
		306	{
		307	req->result = -1;
		308
		309	#if HAVE_FIEMAP
		310	/* assume some c99 */
		311	struct fiemap *fiemap = 0;
		312	size_t end_offset;
		313	int count = req->int3;
		314
		315	req->flags |= EIO_FLAG_PTR1_FREE;
		316
		317	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		318	/* increase in 3.5kb steps */
		319	if (count < 0)
		320	count = 8;
		321
		322	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		323	errno = ENOMEM;
		324	if (!fiemap)
		325	return;
		326
		327	req->ptr1 = fiemap;
		328
		329	fiemap->fm_start = req->offs;
		330	fiemap->fm_length = req->size;
		331	fiemap->fm_flags = req->int2;
		332	fiemap->fm_extent_count = count;
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		335	return;
		336
		337	if (req->int3 >= 0 /* not autosizing */
		338	|| !fiemap->fm_mapped_extents /* no more extents */
		339	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		340	goto done;
		341
		342	/* else we have to loop -
		343	* it would be tempting (actually I tried that first) to just query the
		344	* number of extents needed, but linux often feels like not returning all
		345	* extents, without telling us it left any out. this complicates
		346	* this quite a bit.
		347	*/
		348
		349	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		350
		351	for (;;)
		352	{
		353	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		354	char scratch[3072];
		355	struct fiemap *incmap = (struct fiemap *)scratch;
		356
		357	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		358	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		359	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		360	incmap->fm_flags = fiemap->fm_flags;
		361	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		362
		363	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		364	return;
		365
		366	if (!incmap->fm_mapped_extents)
		367	goto done;
		368
		369	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		370	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		371	errno = ENOMEM;
		372	if (!fiemap)
		373	return;
		374
		375	req->ptr1 = fiemap;
		376
		377	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		378	{
		379	struct fiemap_extent *e = incmap->fm_extents + count;
		380
		381	if (e->fe_logical + e->fe_length >= end_offset)
		382	goto done;
		383
		384	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		385
		386	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		387	goto done;
		388
		389	}
		390	}
		391
		392	done:
		393	req->result = 0;
		394
		395	#else
		396	errno = ENOSYS;
		397	#endif
		398	}
		399
		400	/*****************************************************************************/
		401
149	enum {	402	enum {
150	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	403	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
151	};	404	};
152		405
153	#include "libeio/eio.c"
154
155	typedef eio_req *aio_req;	406	typedef eio_req *aio_req;
156	typedef eio_req *aio_req_ornot;	407	typedef eio_req *aio_req_ornot;
		408	typedef eio_wd aio_wd;
157		409
158	static SV *on_next_submit;	410	static SV *on_next_submit;
159	static int next_pri = EIO_PRI_DEFAULT;	411	static int next_pri = EIO_PRI_DEFAULT;
160	static int max_outstanding;	412	static int max_outstanding;
161		413
162	static int respipe_osf [2], respipe [2] = { -1, -1 };	414	static s_epipe respipe;
163		415
164	static void req_destroy (aio_req req);	416	static void req_destroy (aio_req req);
165	static void req_cancel (aio_req req);	417	static void req_cancel (aio_req req);
166		418
167	static void want_poll (void)	419	static void
		420	want_poll (void)
168	{	421	{
169	/* write a dummy byte to the pipe so fh becomes ready */	422	/* write a dummy byte to the pipe so fh becomes ready */
170	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	423	s_epipe_signal (&respipe);
171	}	424	}
172		425
173	static void done_poll (void)	426	static void
		427	done_poll (void)
174	{	428	{
175	/* read any signals sent by the worker threads */	429	/* read any signals sent by the worker threads */
176	char buf [4];	430	s_epipe_drain (&respipe);
177	while (respipe_read (respipe [0], buf, 4) == 4)
178	;
179	}	431	}
180		432
181	/* must be called at most once */	433	/* must be called at most once */
182	static SV *req_sv (aio_req req, const char *klass)	434	static SV *
		435	req_sv (aio_req req, HV *stash)
183	{	436	{
184	if (!req->self)	437	if (!req->self)
185	{	438	{
186	req->self = (SV *)newHV ();	439	req->self = (SV *)newHV ();
187	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	440	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
188	}	441	}
189		442
190	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	443	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
191	}	444	}
192		445
193	static aio_req SvAIO_REQ (SV *sv)	446	static SV *
		447	newSVaio_wd (aio_wd wd)
		448	{
		449	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		450	}
		451
		452	static aio_req
		453	SvAIO_REQ (SV *sv)
194	{	454	{
195	MAGIC *mg;	455	MAGIC *mg;
196		456
197	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	457	if (!SvROK (sv)
		458	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		459	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		460	&& SvSTASH (SvRV (sv)) != aio_req_stash
		461	&& !sv_derived_from (sv, "IO::AIO::REQ")))
198	croak ("object of class " AIO_REQ_KLASS " expected");	462	croak ("object of class IO::AIO::REQ expected");
199		463
200	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	464	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
201		465
202	return mg ? (aio_req)mg->mg_ptr : 0;	466	return mg ? (aio_req)mg->mg_ptr : 0;
203	}	467	}
204		468
		469	static aio_wd
		470	SvAIO_WD (SV *sv)
		471	{
		472	if (!SvROK (sv)
		473	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		474	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		475	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		476
		477	return (aio_wd)(long)SvIVX (SvRV (sv));
		478	}
		479
		480	static SV *
		481	newmortalFH (int fd, int flags)
		482	{
		483	if (fd < 0)
		484	return &PL_sv_undef;
		485
		486	GV *gv = (GV *)sv_newmortal ();
		487	char sym[64];
		488	int symlen;
		489
		490	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		491	gv_init (gv, aio_stash, sym, symlen, 0);
		492
		493	symlen = snprintf (
		494	sym,
		495	sizeof (sym),
		496	"%s&=%d",
		497	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		498	fd
		499	);
		500
		501	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		502	? (SV *)gv : &PL_sv_undef;
		503	}
		504
		505	static void
205	static void aio_grp_feed (aio_req grp)	506	aio_grp_feed (aio_req grp)
206	{	507	{
207	if (grp->sv2 && SvOK (grp->sv2))	508	if (grp->sv2 && SvOK (grp->sv2))
208	{	509	{
209	dSP;	510	dSP;
210		511
211	ENTER;	512	ENTER;
212	SAVETMPS;	513	SAVETMPS;
213	PUSHMARK (SP);	514	PUSHMARK (SP);
214	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	515	XPUSHs (req_sv (grp, aio_grp_stash));
215	PUTBACK;	516	PUTBACK;
216	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	517	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
217	SPAGAIN;	518	SPAGAIN;
218	FREETMPS;	519	FREETMPS;
219	LEAVE;	520	LEAVE;
220	}	521	}
221	}	522	}
222		523
		524	static void
223	static void req_submit (eio_req *req)	525	req_submit (eio_req *req)
224	{	526	{
225	eio_submit (req);	527	eio_submit (req);
226		528
227	if (expect_false (on_next_submit))	529	if (expect_false (on_next_submit))
228	{	530	{
…		…
235	PUTBACK;	537	PUTBACK;
236	call_sv (cb, G_DISCARD | G_EVAL);	538	call_sv (cb, G_DISCARD | G_EVAL);
237	}	539	}
238	}	540	}
239		541
		542	static int
240	static int req_invoke (eio_req *req)	543	req_invoke (eio_req *req)
241	{	544	{
242	dSP;
243
244	if (req->flags & FLAG_SV2_RO_OFF)	545	if (req->flags & FLAG_SV2_RO_OFF)
245	SvREADONLY_off (req->sv2);	546	SvREADONLY_off (req->sv2);
246		547
247	if (!EIO_CANCELLED (req) && req->callback)	548	if (!EIO_CANCELLED (req) && req->callback)
248	{	549	{
		550	dSP;
		551	static SV *sv_result_cache; /* caches the result integer SV */
		552	SV *sv_result;
		553
249	ENTER;	554	ENTER;
250	SAVETMPS;	555	SAVETMPS;
251	PUSHMARK (SP);	556	PUSHMARK (SP);
252	EXTEND (SP, 1);	557	EXTEND (SP, 1);
253		558
		559	/* do not recreate the result IV from scratch each time */
		560	if (expect_true (sv_result_cache))
		561	{
		562	sv_result = sv_result_cache; sv_result_cache = 0;
		563	SvIV_set (sv_result, req->result);
		564	SvIOK_only (sv_result);
		565	}
		566	else
		567	{
		568	sv_result = newSViv (req->result);
		569	SvREADONLY_on (sv_result);
		570	}
		571
254	switch (req->type)	572	switch (req->type)
255	{	573	{
		574	case EIO_WD_OPEN:
		575	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		576	break;
		577
256	case EIO_READDIR:	578	case EIO_READDIR:
257	{	579	{
258	SV *rv = &PL_sv_undef;	580	SV *rv = &PL_sv_undef;
259		581
260	if (req->result >= 0)	582	if (req->result >= 0)
…		…
313	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	635	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
314	}	636	}
315	break;	637	break;
316		638
317	case EIO_OPEN:	639	case EIO_OPEN:
		640	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		641	break;
		642
		643	case EIO_STATVFS:
		644	case EIO_FSTATVFS:
318	{	645	{
319	/* convert fd to fh */
320	SV *fh = &PL_sv_undef;	646	SV *rv = &PL_sv_undef;
321		647
		648	#ifndef _WIN32
322	if (req->result >= 0)	649	if (req->result >= 0)
323	{	650	{
		651	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
324	GV *gv = (GV *)sv_newmortal ();	652	HV *hv = newHV ();
325	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	653	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
326	char sym [64];	654	* chooses to make it a struct.
327	int symlen;
328		655	*/
329	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	656	unsigned long fsid = 0;
330	gv_init (gv, stash, sym, symlen, 0);	657	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
331		658
332	symlen = snprintf (	659	rv = sv_2mortal (newRV_noinc ((SV *)hv));
333	sym,
334	sizeof (sym),
335	"%s&=%d",
336	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
337	(int)req->result
338	);
339		660
340	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	661	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
341	fh = (SV *)gv;	662	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		663	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		664	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		665	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		666	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		667	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		668	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		669	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		670	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		671	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
342	}	672	}
		673	#endif
343		674
344	PUSHs (fh);	675	PUSHs (rv);
345	}	676	}
		677
346	break;	678	break;
347		679
348	case EIO_GROUP:	680	case EIO_GROUP:
349	req->int1 = 2; /* mark group as finished */	681	req->int1 = 2; /* mark group as finished */
350		682
…		…
362	case EIO_NOP:	694	case EIO_NOP:
363	case EIO_BUSY:	695	case EIO_BUSY:
364	break;	696	break;
365		697
366	case EIO_READLINK:	698	case EIO_READLINK:
		699	case EIO_REALPATH:
367	if (req->result > 0)	700	if (req->result > 0)
368	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	701	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
369	break;	702	break;
370		703
371	case EIO_STAT:	704	case EIO_STAT:
372	case EIO_LSTAT:	705	case EIO_LSTAT:
373	case EIO_FSTAT:	706	case EIO_FSTAT:
374	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	707	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		708
375	PL_laststatval = req->result;	709	if (!(PL_laststatval = req->result))
		710	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
376	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	711	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
377	PUSHs (sv_2mortal (newSViv (req->result)));	712
		713	PUSHs (sv_result);
		714	break;
		715
		716	case EIO_SEEK:
		717	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
378	break;	718	break;
379		719
380	case EIO_READ:	720	case EIO_READ:
381	{	721	{
382	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	722	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
383	*SvEND (req->sv2) = 0;	723	*SvEND (req->sv2) = 0;
384	SvPOK_only (req->sv2);	724	SvPOK_only (req->sv2);
385	SvSETMAGIC (req->sv2);	725	SvSETMAGIC (req->sv2);
386	PUSHs (sv_2mortal (newSViv (req->result)));	726	PUSHs (sv_result);
387	}	727	}
388	break;	728	break;
389		729
390	case EIO_DUP2:	730	case EIO_SLURP:
		731	{
		732	if (req->result >= 0)
		733	{
		734	/* if length was originally not known, we steal the malloc'ed memory */
		735	if (req->flags & EIO_FLAG_PTR2_FREE)
		736	{
		737	req->flags &= ~EIO_FLAG_PTR2_FREE;
		738	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		739	}
		740	else
		741	{
		742	SvCUR_set (req->sv2, req->result);
		743	*SvEND (req->sv2) = 0;
		744	SvPOK_only (req->sv2);
		745	}
		746
		747	SvSETMAGIC (req->sv2);
		748	}
		749
		750	PUSHs (sv_result);
		751	}
		752	break;
		753
		754	case EIO_CUSTOM:
		755	if (req->feed == fiemap)
		756	{
		757	#if HAVE_FIEMAP
		758	if (!req->result)
		759	{
		760	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		761
		762	if (fiemap->fm_extent_count)
		763	{
		764	AV *av = newAV ();
		765	int i;
		766
		767	while (fiemap->fm_mapped_extents)
		768	{
		769	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		770	AV *ext_av = newAV ();
		771
		772	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		773	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		774	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		775	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		776
		777	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		778	}
		779
		780	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		781	}
		782	else
		783	{
		784	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		785	PUSHs (sv_result);
		786	}
		787	}
		788	#endif
		789	}
		790	else
		791	PUSHs (sv_result);
		792	break;
		793
		794	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
391	if (req->result > 0)	795	if (req->result > 0)
392	req->result = 0;	796	SvIV_set (sv_result, 0);
393	/* FALLTHROUGH */	797	/* FALLTHROUGH */
394		798
395	default:	799	default:
396	PUSHs (sv_2mortal (newSViv (req->result)));	800	PUSHs (sv_result);
397	break;	801	break;
398	}	802	}
399		803
400	errno = req->errorno;	804	errno = req->errorno;
401		805
402	PUTBACK;	806	PUTBACK;
403	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	807	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
404	SPAGAIN;	808	SPAGAIN;
405		809
		810	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		811	SvREFCNT_dec (sv_result);
		812	else
		813	sv_result_cache = sv_result;
		814
406	FREETMPS;	815	FREETMPS;
407	LEAVE;	816	LEAVE;
408		817
409	PUTBACK;	818	PUTBACK;
410	}	819	}
411		820
412	return !!SvTRUE (ERRSV);	821	return !!SvTRUE (ERRSV);
413	}	822	}
414		823
		824	static void
415	static void req_destroy (aio_req req)	825	req_destroy (aio_req req)
416	{	826	{
417	if (req->self)	827	if (req->self)
418	{	828	{
419	sv_unmagic (req->self, PERL_MAGIC_ext);	829	sv_unmagic (req->self, PERL_MAGIC_ext);
420	SvREFCNT_dec (req->self);	830	SvREFCNT_dec (req->self);
421	}	831	}
422		832
423	SvREFCNT_dec (req->sv1);	833	SvREFCNT_dec (req->sv1);
424	SvREFCNT_dec (req->sv2);	834	SvREFCNT_dec (req->sv2);
		835	SvREFCNT_dec (req->sv3);
		836	SvREFCNT_dec (req->sv4);
425	SvREFCNT_dec (req->callback);	837	SvREFCNT_dec (req->callback);
426		838
427	Safefree (req);	839	free (req);
428	}	840	}
429		841
		842	static void
430	static void req_cancel_subs (aio_req grp)	843	req_cancel_subs (aio_req grp)
431	{	844	{
432	aio_req sub;
433
434	if (grp->type != EIO_GROUP)	845	if (grp->type != EIO_GROUP)
435	return;	846	return;
436		847
437	SvREFCNT_dec (grp->sv2);	848	SvREFCNT_dec (grp->sv2);
438	grp->sv2 = 0;	849	grp->sv2 = 0;
439		850
440	eio_grp_cancel (grp);	851	eio_grp_cancel (grp);
441	}	852	}
442		853
443	#ifdef USE_SOCKETS_AS_HANDLES	854	static void ecb_cold
444	# define TO_SOCKET(x) (win32_get_osfhandle (x))	855	create_respipe (void)
445	#else	856	{
446	# define TO_SOCKET(x) (x)	857	if (s_epipe_renew (&respipe))
447	#endif	858	croak ("IO::AIO: unable to initialize result pipe");
		859	}
448		860
449	static void	861	static void
450	create_respipe (void)	862	poll_wait (void)
451	{	863	{
452	int old_readfd = respipe [0];
453
454	if (respipe [1] >= 0)
455	respipe_close (TO_SOCKET (respipe [1]));
456
457	#ifdef _WIN32
458	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
459	#else
460	if (pipe (respipe))
461	#endif
462	croak ("unable to initialize result pipe");
463
464	if (old_readfd >= 0)
465	{
466	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
467	croak ("unable to initialize result pipe(2)");
468
469	respipe_close (respipe [0]);
470	respipe [0] = old_readfd;
471	}
472
473	#ifdef _WIN32
474	int arg = 1;
475	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
476	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
477	#else
478	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
479	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	#endif
481	croak ("unable to initialize result pipe(3)");
482
483	respipe_osf [0] = TO_SOCKET (respipe [0]);
484	respipe_osf [1] = TO_SOCKET (respipe [1]);
485	}
486
487	static void poll_wait (void)
488	{
489	fd_set rfd;
490
491	while (eio_nreqs ())	864	while (eio_nreqs ())
492	{	865	{
493	int size;	866	int size;
494		867
495	X_LOCK (reslock);	868	X_LOCK (EIO_POOL->reslock);
496	size = res_queue.size;	869	size = EIO_POOL->res_queue.size;
497	X_UNLOCK (reslock);	870	X_UNLOCK (EIO_POOL->reslock);
498		871
499	if (size)	872	if (size)
500	return;	873	return;
501		874
502	etp_maybe_start_thread ();	875	etp_maybe_start_thread (EIO_POOL);
503		876
504	FD_ZERO (&rfd);	877	s_epipe_wait (&respipe);
505	FD_SET (respipe [0], &rfd);
506
507	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
508	}	878	}
509	}	879	}
510		880
511	static int poll_cb (void)	881	static int
		882	poll_cb (void)
512	{	883	{
513	for (;;)	884	for (;;)
514	{	885	{
515	int res = eio_poll ();	886	int res = eio_poll ();
516		887
…		…
522		893
523	poll_wait ();	894	poll_wait ();
524	}	895	}
525	}	896	}
526		897
527	static void atfork_child (void)	898	static void ecb_cold
		899	reinit (void)
528	{	900	{
529	create_respipe ();	901	create_respipe ();
		902
		903	if (eio_init (want_poll, done_poll) < 0)
		904	croak ("IO::AIO: unable to initialise eio library");
530	}	905	}
		906
		907	/*****************************************************************************/
531		908
532	static SV *	909	static SV *
533	get_cb (SV *cb_sv)	910	get_cb (SV *cb_sv)
534	{	911	{
535	HV *st;	912	SvGETMAGIC (cb_sv);
536	GV *gvp;	913	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		914	}
		915
		916	static aio_req ecb_noinline
		917	dreq (SV *callback)
		918	{
537	CV *cv;	919	SV *cb_cv;
		920	aio_req req;
		921	int req_pri = next_pri;
		922	next_pri = EIO_PRI_DEFAULT;
538		923
539	if (!SvOK (cb_sv))	924	cb_cv = get_cb (callback);
		925
		926	req = calloc (sizeof (*req), 1);
		927	if (!req)
		928	croak ("out of memory during eio_req allocation");
		929
		930	req->callback = SvREFCNT_inc (cb_cv);
		931	req->pri = req_pri;
		932
540	return 0;	933	return req;
541
542	cv = sv_2cv (cb_sv, &st, &gvp, 0);
543
544	if (!cv)
545	croak ("IO::AIO callback must be undef or a CODE reference");
546
547	return (SV *)cv;
548	}	934	}
549		935
550	#define dREQ \	936	#define dREQ \
551	SV *cb_cv; \	937	aio_req req = dreq (callback); \
552	aio_req req; \
553	int req_pri = next_pri; \
554	next_pri = EIO_PRI_DEFAULT; \
555	\
556	cb_cv = get_cb (callback); \
557	\
558	Newz (0, req, 1, eio_req); \
559	if (!req) \
560	croak ("out of memory during eio_req allocation"); \
561	\
562	req->callback = SvREFCNT_inc (cb_cv); \
563	req->pri = req_pri
564		938
565	#define REQ_SEND \	939	#define REQ_SEND \
566	PUTBACK; \	940	PUTBACK; \
567	req_submit (req); \	941	req_submit (req); \
568	SPAGAIN; \	942	SPAGAIN; \
569	\	943	\
570	if (GIMME_V != G_VOID) \	944	if (GIMME_V != G_VOID) \
571	XPUSHs (req_sv (req, AIO_REQ_KLASS));	945	XPUSHs (req_sv (req, aio_req_stash));
572		946
		947	ecb_inline void
		948	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		949	{
		950	if (expect_false (SvROK (path)))
		951	{
		952	SV *rv = SvRV (path);
		953	SV *wdob;
		954
		955	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		956	{
		957	path = AvARRAY (rv)[1];
		958	wdob = AvARRAY (rv)[0];
		959
		960	if (SvOK (wdob))
		961	{
		962	*wd = SvAIO_WD (wdob);
		963	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		964	}
		965	else
		966	*wd = EIO_INVALID_WD;
		967	}
		968	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		969	{
		970	*wd = (aio_wd)(long)SvIVX (rv);
		971	*wdsv = SvREFCNT_inc_NN (rv);
		972	*ptr = ".";
		973	return; /* path set to "." */
		974	}
		975	else
		976	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		977	}
		978
		979	*pathsv = newSVsv (path);
		980	*ptr = SvPVbyte_nolen (*pathsv);
		981	}
		982
		983	static void ecb_noinline
		984	req_set_path1 (aio_req req, SV *path)
		985	{
		986	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		987	}
		988
		989	static void ecb_noinline
		990	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		991	{
		992	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		993
		994	switch (SvTYPE (rv))
		995	{
		996	case SVt_PVIO:
		997	case SVt_PVLV:
		998	case SVt_PVGV:
		999	req->type = type_fh;
		1000	req->sv1 = newSVsv (fh_or_path);
		1001	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1002	break;
		1003
		1004	default:
		1005	req->type = type_path;
		1006	req_set_path1 (req, fh_or_path);
		1007	break;
		1008	}
		1009	}
		1010
		1011	/*****************************************************************************/
		1012
573	static int	1013	static void
574	extract_fd (SV *fh, int wr)	1014	ts_set (struct timespec *ts, NV value)
575	{	1015	{
576	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	1016	ts->tv_sec = value;
577		1017	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
578	if (fd < 0)
579	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
580
581	return fd;
582	}	1018	}
		1019
		1020	static NV
		1021	ts_get (const struct timespec *ts)
		1022	{
		1023	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1024	}
		1025
		1026	/*****************************************************************************/
		1027
		1028	XS(boot_IO__AIO) ecb_cold;
583		1029
584	MODULE = IO::AIO PACKAGE = IO::AIO	1030	MODULE = IO::AIO PACKAGE = IO::AIO
585		1031
586	PROTOTYPES: ENABLE	1032	PROTOTYPES: ENABLE
587		1033
…		…
589	{	1035	{
590	static const struct {	1036	static const struct {
591	const char *name;	1037	const char *name;
592	IV iv;	1038	IV iv;
593	} *civ, const_iv[] = {	1039	} *civ, const_iv[] = {
594	# define const_iv(name, value) { # name, (IV) value },	1040	# define const_niv(name, value) { # name, (IV) value },
		1041	# define const_iv(name) { # name, (IV) name },
595	# define const_eio(name) { # name, (IV) EIO_ ## name },	1042	# define const_eio(name) { # name, (IV) EIO_ ## name },
596	const_iv (EXDEV , EXDEV)	1043
		1044	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1045	/* the first block can be undef if missing */
597	const_iv (ENOSYS , ENOSYS)	1046	const_iv (ENOSYS)
598	const_iv (O_RDONLY, O_RDONLY)	1047	const_iv (EXDEV)
599	const_iv (O_WRONLY, O_WRONLY)	1048	const_iv (EBADR)
600	const_iv (O_CREAT , O_CREAT)	1049
601	const_iv (O_TRUNC , O_TRUNC)	1050	/* for lseek */
602	#ifndef _WIN32	1051	const_iv (SEEK_DATA)
603	const_iv (S_IFIFO , S_IFIFO)	1052	const_iv (SEEK_HOLE)
604	#endif	1053
605	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	1054	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
606	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1055	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
607	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	1056	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
608	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1057	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
609	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1058	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
610	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1059	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1060
		1061	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1062	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1063	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1064	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1065	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1066
		1067	/* the second block will be 0 when missing */
		1068	const_iv (O_ACCMODE)
		1069
		1070	const_iv (O_RDONLY)
		1071	const_iv (O_WRONLY)
		1072	const_iv (O_RDWR)
		1073	const_iv (O_CREAT)
		1074	const_iv (O_TRUNC)
		1075	const_iv (O_EXCL)
		1076	const_iv (O_APPEND)
		1077
		1078	const_iv (O_ASYNC)
		1079	const_iv (O_DIRECT)
		1080	const_iv (O_NOATIME)
		1081
		1082	const_iv (O_CLOEXEC)
		1083	const_iv (O_NOCTTY)
		1084	const_iv (O_NOFOLLOW)
		1085	const_iv (O_NONBLOCK)
		1086	const_iv (O_EXEC)
		1087	const_iv (O_SEARCH)
		1088	const_iv (O_DIRECTORY)
		1089	const_iv (O_DSYNC)
		1090	const_iv (O_RSYNC)
		1091	const_iv (O_SYNC)
		1092	const_iv (O_PATH)
		1093	const_iv (O_TMPFILE)
		1094	const_iv (O_TTY_INIT)
		1095
		1096	const_iv (S_IFIFO)
		1097	const_iv (S_IFCHR)
		1098	const_iv (S_IFBLK)
		1099	const_iv (S_IFLNK)
		1100	const_iv (S_IFREG)
		1101	const_iv (S_IFDIR)
		1102	const_iv (S_IFWHT)
		1103	const_iv (S_IFSOCK)
		1104	const_iv (S_IFMT)
		1105
		1106	const_iv (ST_RDONLY)
		1107	const_iv (ST_NOSUID)
		1108	const_iv (ST_NODEV)
		1109	const_iv (ST_NOEXEC)
		1110	const_iv (ST_SYNCHRONOUS)
		1111	const_iv (ST_MANDLOCK)
		1112	const_iv (ST_WRITE)
		1113	const_iv (ST_APPEND)
		1114	const_iv (ST_IMMUTABLE)
		1115	const_iv (ST_NOATIME)
		1116	const_iv (ST_NODIRATIME)
		1117	const_iv (ST_RELATIME)
		1118
		1119	const_iv (PROT_NONE)
		1120	const_iv (PROT_EXEC)
		1121	const_iv (PROT_READ)
		1122	const_iv (PROT_WRITE)
		1123
		1124	const_iv (MAP_PRIVATE)
		1125	const_iv (MAP_SHARED)
		1126	const_iv (MAP_FIXED)
		1127	const_iv (MAP_ANONYMOUS)
		1128
		1129	/* linuxish */
		1130	const_iv (MAP_LOCKED)
		1131	const_iv (MAP_NORESERVE)
		1132	const_iv (MAP_POPULATE)
		1133	const_iv (MAP_NONBLOCK)
		1134	const_iv (MAP_GROWSDOWN)
		1135	const_iv (MAP_32BIT)
		1136	const_iv (MAP_HUGETLB)
		1137	const_iv (MAP_STACK)
		1138
		1139	const_iv (MREMAP_MAYMOVE)
		1140	const_iv (MREMAP_FIXED)
		1141
		1142	const_iv (F_DUPFD_CLOEXEC)
		1143
		1144	const_iv (MSG_CMSG_CLOEXEC)
		1145	const_iv (SOCK_CLOEXEC)
		1146
		1147	const_iv (F_OFD_GETLK)
		1148	const_iv (F_OFD_SETLK)
		1149	const_iv (F_OFD_GETLKW)
		1150
		1151	const_iv (FIFREEZE)
		1152	const_iv (FITHAW)
		1153	const_iv (FITRIM)
		1154	const_iv (FICLONE)
		1155	const_iv (FICLONERANGE)
		1156	const_iv (FIDEDUPERANGE)
		1157
		1158	const_iv (FS_IOC_GETFLAGS)
		1159	const_iv (FS_IOC_SETFLAGS)
		1160	const_iv (FS_IOC_GETVERSION)
		1161	const_iv (FS_IOC_SETVERSION)
		1162	const_iv (FS_IOC_FIEMAP)
		1163	const_iv (FS_IOC_FSGETXATTR)
		1164	const_iv (FS_IOC_FSSETXATTR)
		1165	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1166	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1167	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1168
		1169	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1170
		1171	const_iv (FS_SECRM_FL)
		1172	const_iv (FS_UNRM_FL)
		1173	const_iv (FS_COMPR_FL)
		1174	const_iv (FS_SYNC_FL)
		1175	const_iv (FS_IMMUTABLE_FL)
		1176	const_iv (FS_APPEND_FL)
		1177	const_iv (FS_NODUMP_FL)
		1178	const_iv (FS_NOATIME_FL)
		1179	const_iv (FS_DIRTY_FL)
		1180	const_iv (FS_COMPRBLK_FL)
		1181	const_iv (FS_NOCOMP_FL)
		1182	const_iv (FS_ENCRYPT_FL)
		1183	const_iv (FS_BTREE_FL)
		1184	const_iv (FS_INDEX_FL)
		1185	const_iv (FS_JOURNAL_DATA_FL)
		1186	const_iv (FS_NOTAIL_FL)
		1187	const_iv (FS_DIRSYNC_FL)
		1188	const_iv (FS_TOPDIR_FL)
		1189	const_iv (FS_FL_USER_MODIFIABLE)
		1190
		1191	const_iv (FS_XFLAG_REALTIME)
		1192	const_iv (FS_XFLAG_PREALLOC)
		1193	const_iv (FS_XFLAG_IMMUTABLE)
		1194	const_iv (FS_XFLAG_APPEND)
		1195	const_iv (FS_XFLAG_SYNC)
		1196	const_iv (FS_XFLAG_NOATIME)
		1197	const_iv (FS_XFLAG_NODUMP)
		1198	const_iv (FS_XFLAG_RTINHERIT)
		1199	const_iv (FS_XFLAG_PROJINHERIT)
		1200	const_iv (FS_XFLAG_NOSYMLINKS)
		1201	const_iv (FS_XFLAG_EXTSIZE)
		1202	const_iv (FS_XFLAG_EXTSZINHERIT)
		1203	const_iv (FS_XFLAG_NODEFRAG)
		1204	const_iv (FS_XFLAG_FILESTREAM)
		1205	const_iv (FS_XFLAG_DAX)
		1206	const_iv (FS_XFLAG_HASATTR)
		1207
		1208	const_iv (FIEMAP_FLAG_SYNC)
		1209	const_iv (FIEMAP_FLAG_XATTR)
		1210	const_iv (FIEMAP_FLAGS_COMPAT)
		1211	const_iv (FIEMAP_EXTENT_LAST)
		1212	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1213	const_iv (FIEMAP_EXTENT_DELALLOC)
		1214	const_iv (FIEMAP_EXTENT_ENCODED)
		1215	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1216	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1217	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1218	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1219	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1220	const_iv (FIEMAP_EXTENT_MERGED)
		1221	const_iv (FIEMAP_EXTENT_SHARED)
		1222
		1223	const_iv (SPLICE_F_MOVE)
		1224	const_iv (SPLICE_F_NONBLOCK)
		1225	const_iv (SPLICE_F_MORE)
		1226	const_iv (SPLICE_F_GIFT)
		1227
		1228	const_iv (EFD_CLOEXEC)
		1229	const_iv (EFD_NONBLOCK)
		1230	const_iv (EFD_SEMAPHORE)
		1231
		1232	const_iv (CLOCK_REALTIME)
		1233	const_iv (CLOCK_MONOTONIC)
		1234	const_iv (CLOCK_BOOTTIME)
		1235	const_iv (CLOCK_REALTIME_ALARM)
		1236	const_iv (CLOCK_BOOTTIME_ALARM)
		1237
		1238	const_iv (TFD_NONBLOCK)
		1239	const_iv (TFD_CLOEXEC)
		1240
		1241	const_iv (TFD_TIMER_ABSTIME)
		1242	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1243
		1244	/* these are libeio constants, and are independent of gendef0 */
		1245	const_eio (SEEK_SET)
		1246	const_eio (SEEK_CUR)
		1247	const_eio (SEEK_END)
		1248
		1249	const_eio (MCL_FUTURE)
		1250	const_eio (MCL_CURRENT)
		1251
		1252	const_eio (MS_ASYNC)
		1253	const_eio (MS_INVALIDATE)
		1254	const_eio (MS_SYNC)
		1255
		1256	const_eio (MT_MODIFY)
611		1257
612	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1258	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
613	const_eio (SYNC_FILE_RANGE_WRITE)	1259	const_eio (SYNC_FILE_RANGE_WRITE)
614	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1260	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1261
		1262	const_eio (FALLOC_FL_KEEP_SIZE)
		1263	const_eio (FALLOC_FL_PUNCH_HOLE)
		1264	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1265	const_eio (FALLOC_FL_ZERO_RANGE)
		1266	const_eio (FALLOC_FL_INSERT_RANGE)
		1267	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1268
		1269	const_eio (RENAME_NOREPLACE)
		1270	const_eio (RENAME_EXCHANGE)
		1271	const_eio (RENAME_WHITEOUT)
615		1272
616	const_eio (READDIR_DENTS)	1273	const_eio (READDIR_DENTS)
617	const_eio (READDIR_DIRS_FIRST)	1274	const_eio (READDIR_DIRS_FIRST)
618	const_eio (READDIR_STAT_ORDER)	1275	const_eio (READDIR_STAT_ORDER)
619	const_eio (READDIR_FOUND_UNKNOWN)	1276	const_eio (READDIR_FOUND_UNKNOWN)
…		…
627	const_eio (DT_LNK)	1284	const_eio (DT_LNK)
628	const_eio (DT_SOCK)	1285	const_eio (DT_SOCK)
629	const_eio (DT_WHT)	1286	const_eio (DT_WHT)
630	};	1287	};
631		1288
632	stash = gv_stashpv ("IO::AIO", 1);	1289	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1290	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1291	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1292	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
633		1293
634	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1294	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
635	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1295	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
636		1296
637	create_respipe ();	1297	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
638		1298
639	if (eio_init (want_poll, done_poll) < 0)	1299	reinit ();
640	croak ("IO::AIO: unable to initialise eio library");
641
642	/* atfork child called in fifo order, so before eio's handler */
643	X_THREAD_ATFORK (0, 0, atfork_child);
644	}	1300	}
645		1301
646	void	1302	void
		1303	reinit ()
		1304	PROTOTYPE:
		1305
		1306	void
647	max_poll_reqs (int nreqs)	1307	max_poll_reqs (unsigned int nreqs)
648	PROTOTYPE: $	1308	PROTOTYPE: $
649	CODE:	1309	CODE:
650	eio_set_max_poll_reqs (nreqs);	1310	eio_set_max_poll_reqs (nreqs);
651		1311
652	void	1312	void
…		…
654	PROTOTYPE: $	1314	PROTOTYPE: $
655	CODE:	1315	CODE:
656	eio_set_max_poll_time (nseconds);	1316	eio_set_max_poll_time (nseconds);
657		1317
658	void	1318	void
659	min_parallel (int nthreads)	1319	min_parallel (unsigned int nthreads)
660	PROTOTYPE: $	1320	PROTOTYPE: $
661	CODE:	1321	CODE:
662	eio_set_min_parallel (nthreads);	1322	eio_set_min_parallel (nthreads);
663		1323
664	void	1324	void
665	max_parallel (int nthreads)	1325	max_parallel (unsigned int nthreads)
666	PROTOTYPE: $	1326	PROTOTYPE: $
667	CODE:	1327	CODE:
668	eio_set_max_parallel (nthreads);	1328	eio_set_max_parallel (nthreads);
669		1329
670	void	1330	void
671	max_idle (int nthreads)	1331	max_idle (unsigned int nthreads)
672	PROTOTYPE: $	1332	PROTOTYPE: $
673	CODE:	1333	CODE:
674	eio_set_max_idle (nthreads);	1334	eio_set_max_idle (nthreads);
675		1335
676	void	1336	void
		1337	idle_timeout (unsigned int seconds)
		1338	PROTOTYPE: $
		1339	CODE:
		1340	eio_set_idle_timeout (seconds);
		1341
		1342	void
677	max_outstanding (int maxreqs)	1343	max_outstanding (unsigned int maxreqs)
678	PROTOTYPE: $	1344	PROTOTYPE: $
679	CODE:	1345	CODE:
680	max_outstanding = maxreqs;	1346	max_outstanding = maxreqs;
681		1347
682	void	1348	void
683	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1349	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
684	PROTOTYPE: $$$;$
685	PPCODE:	1350	PPCODE:
686	{	1351	{
687	dREQ;	1352	dREQ;
688		1353
		1354	req->type = EIO_WD_OPEN;
		1355	req_set_path1 (req, pathname);
		1356
		1357	REQ_SEND;
		1358	}
		1359
		1360	void
		1361	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1362	PPCODE:
		1363	{
		1364	dREQ;
		1365
689	req->type = EIO_OPEN;	1366	req->type = EIO_OPEN;
690	req->sv1 = newSVsv (pathname);	1367	req_set_path1 (req, pathname);
691	req->ptr1 = SvPVbyte_nolen (req->sv1);
692	req->int1 = flags;	1368	req->int1 = flags;
693	req->int2 = mode;	1369	req->int2 = mode;
694		1370
695	REQ_SEND;	1371	REQ_SEND;
696	}	1372	}
697		1373
698	void	1374	void
699	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1375	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
700	PROTOTYPE: $;$
701	ALIAS:	1376	ALIAS:
702	aio_fsync = EIO_FSYNC	1377	aio_fsync = EIO_FSYNC
703	aio_fdatasync = EIO_FDATASYNC	1378	aio_fdatasync = EIO_FDATASYNC
		1379	aio_syncfs = EIO_SYNCFS
704	PPCODE:	1380	PPCODE:
705	{	1381	{
706	int fd = extract_fd (fh, 0);	1382	int fd = s_fileno_croak (fh, 0);
707	dREQ;	1383	dREQ;
708		1384
709	req->type = ix;	1385	req->type = ix;
710	req->sv1 = newSVsv (fh);	1386	req->sv1 = newSVsv (fh);
711	req->int1 = fd;	1387	req->int1 = fd;
712		1388
713	REQ_SEND (req);	1389	REQ_SEND;
714	}	1390	}
715		1391
716	void	1392	void
717	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1393	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
718	PROTOTYPE: $$$$;$
719	PPCODE:	1394	PPCODE:
720	{	1395	{
721	int fd = extract_fd (fh, 0);	1396	int fd = s_fileno_croak (fh, 0);
722	dREQ;	1397	dREQ;
723		1398
724	req->type = EIO_SYNC_FILE_RANGE;	1399	req->type = EIO_SYNC_FILE_RANGE;
725	req->sv1 = newSVsv (fh);	1400	req->sv1 = newSVsv (fh);
726	req->int1 = fd;	1401	req->int1 = fd;
727	req->offs = offset;	1402	req->offs = offset;
728	req->size = nbytes;	1403	req->size = nbytes;
729	req->int2 = flags;	1404	req->int2 = flags;
730		1405
731	REQ_SEND (req);	1406	REQ_SEND;
732	}	1407	}
733		1408
734	void	1409	void
735	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1410	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
736	PROTOTYPE: $;$
737	PPCODE:	1411	PPCODE:
738	{	1412	{
739	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1413	int fd = s_fileno_croak (fh, 0);
740	int fd = extract_fd (fh, 0);
741	dREQ;	1414	dREQ;
742		1415
743	if (close_pipe < 0)	1416	req->type = EIO_FALLOCATE;
		1417	req->sv1 = newSVsv (fh);
		1418	req->int1 = fd;
		1419	req->int2 = mode;
		1420	req->offs = offset;
		1421	req->size = len;
		1422
		1423	REQ_SEND;
		1424	}
		1425
		1426	void
		1427	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1428	PPCODE:
		1429	{
		1430	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1431	int fd = s_fileno_croak (fh, 0);
		1432	dREQ;
		1433
		1434	if (expect_false (close_fd < 0))
744	{	1435	{
745	int pipefd [2];	1436	int pipefd [2];
746		1437
		1438	if (
		1439	#ifdef _WIN32
		1440	_pipe (pipefd, 1, _O_BINARY) < 0
		1441	#else
747	if (pipe (pipefd) < 0	1442	pipe (pipefd) < 0
748	|| close (pipefd [1]) < 0
749	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1443	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1444	#endif
		1445	|| close (pipefd [1]) < 0
		1446	)
750	abort (); /*D*/	1447	abort (); /*D*/
751		1448
752	close_pipe = pipefd [0];	1449	close_fd = pipefd [0];
753	}	1450	}
754		1451
755	req->type = EIO_DUP2;	1452	req->type = EIO_DUP2;
756	req->int1 = close_pipe;	1453	req->int1 = close_fd;
757	req->sv2 = newSVsv (fh);	1454	req->sv2 = newSVsv (fh);
758	req->int2 = fd;	1455	req->int2 = fd;
759		1456
760	REQ_SEND (req);	1457	REQ_SEND;
761	}	1458	}
762		1459
763	void	1460	void
		1461	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1462	PPCODE:
		1463	{
		1464	int fd = s_fileno_croak (fh, 0);
		1465	dREQ;
		1466
		1467	req->type = EIO_SEEK;
		1468	req->sv1 = newSVsv (fh);
		1469	req->int1 = fd;
		1470	req->offs = SvVAL64 (offset);
		1471	req->int2 = whence;
		1472
		1473	REQ_SEND;
		1474	}
		1475
		1476	void
764	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1477	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
765	ALIAS:	1478	ALIAS:
766	aio_read = EIO_READ	1479	aio_read = EIO_READ
767	aio_write = EIO_WRITE	1480	aio_write = EIO_WRITE
768	PROTOTYPE: $$$$$;$
769	PPCODE:	1481	PPCODE:
770	{	1482	{
771	STRLEN svlen;	1483	STRLEN svlen;
772	int fd = extract_fd (fh, ix == EIO_WRITE);	1484	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
773	char *svptr = SvPVbyte (data, svlen);	1485	char *svptr = SvPVbyte (data, svlen);
774	UV len = SvUV (length);	1486	UV len = SvUV (length);
775		1487
776	if (dataoffset < 0)	1488	if (dataoffset < 0)
777	dataoffset += svlen;	1489	dataoffset += svlen;
…		…
786	len = svlen - dataoffset;	1498	len = svlen - dataoffset;
787	}	1499	}
788	else	1500	else
789	{	1501	{
790	/* read: check type and grow scalar as necessary */	1502	/* read: check type and grow scalar as necessary */
791	SvUPGRADE (data, SVt_PV);	1503	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
792	svptr = SvGROW (data, len + dataoffset + 1);	1504	svptr = sv_grow (data, len + dataoffset + 1);
		1505	else if (SvCUR (data) < len + dataoffset)
		1506	croak ("length + dataoffset outside of scalar, and cannot grow");
793	}	1507	}
794		1508
795	{	1509	{
796	dREQ;	1510	dREQ;
797		1511
…		…
813	REQ_SEND;	1527	REQ_SEND;
814	}	1528	}
815	}	1529	}
816		1530
817	void	1531	void
818	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1532	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
819	PROTOTYPE: $$;$	1533	ALIAS:
		1534	aio_ioctl = EIO_IOCTL
		1535	aio_fcntl = EIO_FCNTL
820	PPCODE:	1536	PPCODE:
821	{	1537	{
822	SV *data;	1538	int fd = s_fileno_croak (fh, 0);
		1539	char *svptr;
		1540
		1541	if (SvPOK (arg) || !SvNIOK (arg))
		1542	{
		1543	STRLEN svlen;
		1544	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1545	#ifdef IOCPARM_LEN
		1546	STRLEN need = IOCPARM_LEN (request);
		1547	#else
		1548	STRLEN need = 256;
		1549	#endif
		1550
		1551	if (svlen < need)
		1552	svptr = SvGROW (arg, need);
		1553	}
		1554	else
		1555	svptr = (char *)SvIV (arg);
		1556
		1557	{
		1558	dREQ;
		1559
		1560	req->type = ix;
		1561	req->sv1 = newSVsv (fh);
		1562	req->int1 = fd;
		1563	req->int2 = (long)request;
		1564	req->sv2 = SvREFCNT_inc (arg);
		1565	req->ptr2 = svptr;
		1566
		1567	REQ_SEND;
		1568	}
		1569	}
		1570
		1571	void
		1572	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1573	ALIAS:
		1574	aio_readlink = EIO_READLINK
		1575	aio_realpath = EIO_REALPATH
		1576	PPCODE:
		1577	{
823	dREQ;	1578	dREQ;
824		1579
825	req->type = EIO_READLINK;	1580	req->type = ix;
826	req->sv1 = newSVsv (path);	1581	req_set_path1 (req, pathname);
827	req->ptr1 = SvPVbyte_nolen (req->sv1);
828		1582
829	REQ_SEND;	1583	REQ_SEND;
830	}	1584	}
831		1585
832	void	1586	void
833	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1587	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
834	PROTOTYPE: $$$$;$
835	PPCODE:	1588	PPCODE:
836	{	1589	{
837	int ifd = extract_fd (in_fh , 0);	1590	int ifd = s_fileno_croak (in_fh , 0);
838	int ofd = extract_fd (out_fh, 0);	1591	int ofd = s_fileno_croak (out_fh, 1);
839	dREQ;	1592	dREQ;
840		1593
841	req->type = EIO_SENDFILE;	1594	req->type = EIO_SENDFILE;
842	req->sv1 = newSVsv (out_fh);	1595	req->sv1 = newSVsv (out_fh);
843	req->int1 = ofd;	1596	req->int1 = ofd;
…		…
848		1601
849	REQ_SEND;	1602	REQ_SEND;
850	}	1603	}
851		1604
852	void	1605	void
853	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1606	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
854	PROTOTYPE: $$$;$
855	PPCODE:	1607	PPCODE:
856	{	1608	{
857	int fd = extract_fd (fh, 0);	1609	int fd = s_fileno_croak (fh, 0);
858	dREQ;	1610	dREQ;
859		1611
860	req->type = EIO_READAHEAD;	1612	req->type = EIO_READAHEAD;
861	req->sv1 = newSVsv (fh);	1613	req->sv1 = newSVsv (fh);
862	req->int1 = fd;	1614	req->int1 = fd;
…		…
865		1617
866	REQ_SEND;	1618	REQ_SEND;
867	}	1619	}
868		1620
869	void	1621	void
870	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1622	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
871	ALIAS:	1623	ALIAS:
872	aio_stat = EIO_STAT	1624	aio_stat = EIO_STAT
873	aio_lstat = EIO_LSTAT	1625	aio_lstat = EIO_LSTAT
		1626	aio_statvfs = EIO_STATVFS
874	PPCODE:	1627	PPCODE:
875	{	1628	{
876	dREQ;	1629	dREQ;
877		1630
878	req->sv1 = newSVsv (fh_or_path);	1631	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
879
880	if (SvPOK (req->sv1))
881	{
882	req->type = ix;
883	req->ptr1 = SvPVbyte_nolen (req->sv1);
884	}
885	else
886	{
887	req->type = EIO_FSTAT;
888	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
889	}
890		1632
891	REQ_SEND;	1633	REQ_SEND;
892	}	1634	}
893		1635
894	void	1636	void
		1637	st_xtime ()
		1638	ALIAS:
		1639	st_atime = 1
		1640	st_mtime = 2
		1641	st_ctime = 4
		1642	st_xtime = 7
		1643	PPCODE:
		1644	EXTEND (SP, 3);
		1645	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1646	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1647	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1648
		1649	void
		1650	st_xtimensec ()
		1651	ALIAS:
		1652	st_atimensec = 1
		1653	st_mtimensec = 2
		1654	st_ctimensec = 4
		1655	st_xtimensec = 7
		1656	PPCODE:
		1657	EXTEND (SP, 3);
		1658	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1659	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1660	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1661
		1662	UV
		1663	major (UV dev)
		1664	ALIAS:
		1665	minor = 1
		1666	CODE:
		1667	RETVAL = ix ? minor (dev) : major (dev);
		1668	OUTPUT:
		1669	RETVAL
		1670
		1671	UV
		1672	makedev (UV maj, UV min)
		1673	CODE:
		1674	RETVAL = makedev (maj, min);
		1675	OUTPUT:
		1676	RETVAL
		1677
		1678	void
895	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1679	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
896	PPCODE:	1680	PPCODE:
897	{	1681	{
898	dREQ;	1682	dREQ;
899		1683
900	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1684	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
901	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1685	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
902	req->sv1 = newSVsv (fh_or_path);	1686	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
903
904	if (SvPOK (req->sv1))
905	{
906	req->type = EIO_UTIME;
907	req->ptr1 = SvPVbyte_nolen (req->sv1);
908	}
909	else
910	{
911	req->type = EIO_FUTIME;
912	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
913	}
914		1687
915	REQ_SEND;	1688	REQ_SEND;
916	}	1689	}
917		1690
918	void	1691	void
919	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1692	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
920	PPCODE:	1693	PPCODE:
921	{	1694	{
922	dREQ;	1695	dREQ;
923		1696
924	req->sv1 = newSVsv (fh_or_path);
925	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1697	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
926		1698	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
927	if (SvPOK (req->sv1))
928	{
929	req->type = EIO_TRUNCATE;
930	req->ptr1 = SvPVbyte_nolen (req->sv1);
931	}
932	else
933	{
934	req->type = EIO_FTRUNCATE;
935	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
936	}
937		1699
938	REQ_SEND;	1700	REQ_SEND;
939	}	1701	}
940		1702
941	void	1703	void
942	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1704	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
943	ALIAS:
944	aio_chmod = EIO_CHMOD
945	aio_mkdir = EIO_MKDIR
946	PPCODE:	1705	PPCODE:
947	{	1706	{
948	dREQ;	1707	dREQ;
949		1708
950	req->int2 = mode;	1709	req->int2 = mode;
951	req->sv1 = newSVsv (fh_or_path);	1710	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
952
953	if (SvPOK (req->sv1))
954	{
955	req->type = ix;
956	req->ptr1 = SvPVbyte_nolen (req->sv1);
957	}
958	else
959	{
960	req->type = EIO_FCHMOD;
961	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
962	}
963		1711
964	REQ_SEND;	1712	REQ_SEND;
965	}	1713	}
966		1714
967	void	1715	void
968	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1716	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
969	PPCODE:	1717	PPCODE:
970	{	1718	{
971	dREQ;	1719	dREQ;
972		1720
973	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1721	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
974	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1722	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
975	req->sv1 = newSVsv (fh_or_path);	1723	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
976
977	if (SvPOK (req->sv1))
978	{
979	req->type = EIO_CHOWN;
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	}
982	else
983	{
984	req->type = EIO_FCHOWN;
985	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
986	}
987		1724
988	REQ_SEND;	1725	REQ_SEND;
989	}	1726	}
990		1727
991	void	1728	void
992	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1729	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
993	PPCODE:	1730	PPCODE:
994	{	1731	{
995	dREQ;	1732	dREQ;
996		1733
997	req->type = EIO_READDIR;	1734	req->type = EIO_READDIR;
998	req->sv1 = newSVsv (pathname);
999	req->ptr1 = SvPVbyte_nolen (req->sv1);
1000	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1735	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1001		1736
1002	if (flags & EIO_READDIR_DENTS)	1737	if (flags & EIO_READDIR_DENTS)
1003	req->int1 |= EIO_READDIR_CUSTOM2;	1738	req->int1 |= EIO_READDIR_CUSTOM2;
1004		1739
		1740	req_set_path1 (req, pathname);
		1741
1005	REQ_SEND;	1742	REQ_SEND;
1006	}	1743	}
1007		1744
1008	void	1745	void
		1746	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1747	PPCODE:
		1748	{
		1749	dREQ;
		1750
		1751	req->type = EIO_MKDIR;
		1752	req->int2 = mode;
		1753	req_set_path1 (req, pathname);
		1754
		1755	REQ_SEND;
		1756	}
		1757
		1758	void
1009	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1759	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1010	ALIAS:	1760	ALIAS:
1011	aio_unlink = EIO_UNLINK	1761	aio_unlink = EIO_UNLINK
1012	aio_rmdir = EIO_RMDIR	1762	aio_rmdir = EIO_RMDIR
1013	aio_readdir = EIO_READDIR	1763	aio_readdir = EIO_READDIR
1014	PPCODE:	1764	PPCODE:
1015	{	1765	{
1016	dREQ;	1766	dREQ;
1017		1767
1018	req->type = ix;	1768	req->type = ix;
1019	req->sv1 = newSVsv (pathname);	1769	req_set_path1 (req, pathname);
1020	req->ptr1 = SvPVbyte_nolen (req->sv1);
1021		1770
1022	REQ_SEND;	1771	REQ_SEND;
1023	}	1772	}
1024		1773
1025	void	1774	void
1026	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1775	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1027	ALIAS:	1776	ALIAS:
1028	aio_link = EIO_LINK	1777	aio_link = EIO_LINK
1029	aio_symlink = EIO_SYMLINK	1778	aio_symlink = EIO_SYMLINK
1030	aio_rename = EIO_RENAME	1779	aio_rename = EIO_RENAME
1031	PPCODE:	1780	PPCODE:
1032	{	1781	{
		1782	eio_wd wd2 = 0;
1033	dREQ;	1783	dREQ;
1034		1784
1035	req->type = ix;	1785	req->type = ix;
1036	req->sv1 = newSVsv (oldpath);	1786	req_set_path1 (req, oldpath);
1037	req->ptr1 = SvPVbyte_nolen (req->sv1);	1787	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1038	req->sv2 = newSVsv (newpath);	1788	req->int3 = (long)wd2;
1039	req->ptr2 = SvPVbyte_nolen (req->sv2);
1040		1789
1041	REQ_SEND;	1790	REQ_SEND;
1042	}	1791	}
1043		1792
1044	void	1793	void
		1794	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1795	PPCODE:
		1796	{
		1797	eio_wd wd2 = 0;
		1798	dREQ;
		1799
		1800	req->type = EIO_RENAME;
		1801	req_set_path1 (req, oldpath);
		1802	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1803	req->int2 = flags;
		1804	req->int3 = (long)wd2;
		1805
		1806	REQ_SEND;
		1807	}
		1808
		1809	void
1045	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1810	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1046	PPCODE:	1811	PPCODE:
1047	{	1812	{
1048	dREQ;	1813	dREQ;
1049		1814
1050	req->type = EIO_MKNOD;	1815	req->type = EIO_MKNOD;
1051	req->sv1 = newSVsv (pathname);
1052	req->ptr1 = SvPVbyte_nolen (req->sv1);
1053	req->int2 = (mode_t)mode;	1816	req->int2 = (mode_t)mode;
1054	req->offs = dev;	1817	req->offs = dev;
		1818	req_set_path1 (req, pathname);
1055		1819
1056	REQ_SEND;	1820	REQ_SEND;
1057	}	1821	}
1058		1822
1059	void	1823	void
		1824	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1825	ALIAS:
		1826	aio_mtouch = EIO_MTOUCH
		1827	aio_msync = EIO_MSYNC
		1828	PPCODE:
		1829	{
		1830	STRLEN svlen;
		1831	char *svptr = SvPVbyte (data, svlen);
		1832	UV len = SvUV (length);
		1833
		1834	if (flags < 0)
		1835	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1836
		1837	if (offset < 0)
		1838	offset += svlen;
		1839
		1840	if (offset < 0 || offset > svlen)
		1841	croak ("offset outside of scalar");
		1842
		1843	if (!SvOK (length) || len + offset > svlen)
		1844	len = svlen - offset;
		1845
		1846	{
		1847	dREQ;
		1848
		1849	req->type = ix;
		1850	req->sv2 = SvREFCNT_inc (data);
		1851	req->ptr2 = (char *)svptr + offset;
		1852	req->size = len;
		1853	req->int1 = flags;
		1854
		1855	REQ_SEND;
		1856	}
		1857	}
		1858
		1859	void
		1860	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1861	PPCODE:
		1862	{
		1863	STRLEN svlen;
		1864	char *svptr = SvPVbyte (data, svlen);
		1865	UV len = SvUV (length);
		1866
		1867	if (offset < 0)
		1868	offset += svlen;
		1869
		1870	if (offset < 0 || offset > svlen)
		1871	croak ("offset outside of scalar");
		1872
		1873	if (!SvOK (length) || len + offset > svlen)
		1874	len = svlen - offset;
		1875
		1876	{
		1877	dREQ;
		1878
		1879	req->type = EIO_MLOCK;
		1880	req->sv2 = SvREFCNT_inc (data);
		1881	req->ptr2 = (char *)svptr + offset;
		1882	req->size = len;
		1883
		1884	REQ_SEND;
		1885	}
		1886	}
		1887
		1888	void
		1889	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1890	PPCODE:
		1891	{
		1892	dREQ;
		1893
		1894	req->type = EIO_MLOCKALL;
		1895	req->int1 = flags;
		1896
		1897	REQ_SEND;
		1898	}
		1899
		1900	void
		1901	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1902	PPCODE:
		1903	{
		1904	int fd = s_fileno_croak (fh, 0);
		1905	dREQ;
		1906
		1907	req->type = EIO_CUSTOM;
		1908	req->sv1 = newSVsv (fh);
		1909	req->int1 = fd;
		1910
		1911	req->feed = fiemap;
		1912	#if HAVE_FIEMAP
		1913	/* keep our fingers crossed that the next two types are 64 bit */
		1914	req->offs = start;
		1915	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1916	req->int2 = flags;
		1917	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1918	#endif
		1919
		1920	REQ_SEND;
		1921	}
		1922
		1923	void
		1924	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1925	PPCODE:
		1926	{
		1927	char *svptr = 0;
		1928
		1929	sv_clear_foreign (data);
		1930
		1931	if (length) /* known length, directly read into scalar */
		1932	{
		1933	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1934	svptr = sv_grow (data, length + 1);
		1935	else if (SvCUR (data) < length)
		1936	croak ("length outside of scalar, and cannot grow");
		1937	else
		1938	svptr = SvPVbyte_nolen (data);
		1939	}
		1940
		1941	{
		1942	dREQ;
		1943
		1944	req->type = EIO_SLURP;
		1945	req_set_path1 (req, pathname);
		1946	req->offs = offset;
		1947	req->size = length;
		1948	req->sv2 = SvREFCNT_inc (data);
		1949	req->ptr2 = svptr;
		1950
		1951	if (!SvREADONLY (data))
		1952	{
		1953	SvREADONLY_on (data);
		1954	req->flags |= FLAG_SV2_RO_OFF;
		1955	}
		1956
		1957	REQ_SEND;
		1958	}
		1959	}
		1960
		1961	void
1060	aio_busy (double delay, SV *callback=&PL_sv_undef)	1962	aio_busy (double delay, SV *callback = &PL_sv_undef)
1061	PPCODE:	1963	PPCODE:
1062	{	1964	{
1063	dREQ;	1965	dREQ;
1064		1966
1065	req->type = EIO_BUSY;	1967	req->type = EIO_BUSY;
…		…
1067		1969
1068	REQ_SEND;	1970	REQ_SEND;
1069	}	1971	}
1070		1972
1071	void	1973	void
1072	aio_group (SV *callback=&PL_sv_undef)	1974	aio_group (SV *callback = &PL_sv_undef)
1073	PROTOTYPE: ;$
1074	PPCODE:	1975	PPCODE:
1075	{	1976	{
1076	dREQ;	1977	dREQ;
1077		1978
1078	req->type = EIO_GROUP;	1979	req->type = EIO_GROUP;
1079		1980
		1981	PUTBACK;
1080	req_submit (req);	1982	req_submit (req);
		1983	SPAGAIN;
		1984
1081	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1985	XPUSHs (req_sv (req, aio_grp_stash));
1082	}	1986	}
1083		1987
1084	void	1988	void
1085	aio_nop (SV *callback=&PL_sv_undef)	1989	aio_nop (SV *callback = &PL_sv_undef)
1086	ALIAS:	1990	ALIAS:
1087	aio_nop = EIO_NOP	1991	aio_nop = EIO_NOP
1088	aio_sync = EIO_SYNC	1992	aio_sync = EIO_SYNC
1089	PPCODE:	1993	PPCODE:
1090	{	1994	{
…		…
1094		1998
1095	REQ_SEND;	1999	REQ_SEND;
1096	}	2000	}
1097		2001
1098	int	2002	int
1099	aioreq_pri (int pri = 0)	2003	aioreq_pri (int pri = NO_INIT)
1100	PROTOTYPE: ;$
1101	CODE:	2004	CODE:
1102	RETVAL = next_pri;	2005	RETVAL = next_pri;
1103	if (items > 0)	2006	if (items > 0)
1104	{	2007	{
1105	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2008	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1117	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	2020	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1118	next_pri = nice;	2021	next_pri = nice;
1119		2022
1120	void	2023	void
1121	flush ()	2024	flush ()
1122	PROTOTYPE:
1123	CODE:	2025	CODE:
1124	while (eio_nreqs ())	2026	while (eio_nreqs ())
1125	{	2027	{
1126	poll_wait ();	2028	poll_wait ();
1127	poll_cb ();	2029	poll_cb ();
1128	}	2030	}
1129		2031
1130	int	2032	int
1131	poll()	2033	poll ()
1132	PROTOTYPE:
1133	CODE:	2034	CODE:
1134	poll_wait ();	2035	poll_wait ();
1135	RETVAL = poll_cb ();	2036	RETVAL = poll_cb ();
1136	OUTPUT:	2037	OUTPUT:
1137	RETVAL	2038	RETVAL
1138		2039
1139	int	2040	int
1140	poll_fileno()	2041	poll_fileno ()
1141	PROTOTYPE:
1142	CODE:	2042	CODE:
1143	RETVAL = respipe [0];	2043	RETVAL = s_epipe_fd (&respipe);
1144	OUTPUT:	2044	OUTPUT:
1145	RETVAL	2045	RETVAL
1146		2046
1147	int	2047	int
1148	poll_cb(...)	2048	poll_cb (...)
1149	PROTOTYPE:	2049	PROTOTYPE:
1150	CODE:	2050	CODE:
1151	RETVAL = poll_cb ();	2051	RETVAL = poll_cb ();
1152	OUTPUT:	2052	OUTPUT:
1153	RETVAL	2053	RETVAL
1154		2054
1155	void	2055	void
1156	poll_wait()	2056	poll_wait ()
1157	PROTOTYPE:
1158	CODE:	2057	CODE:
1159	poll_wait ();	2058	poll_wait ();
1160		2059
1161	int	2060	int
1162	nreqs()	2061	nreqs ()
1163	PROTOTYPE:
1164	CODE:	2062	CODE:
1165	RETVAL = eio_nreqs ();	2063	RETVAL = eio_nreqs ();
1166	OUTPUT:	2064	OUTPUT:
1167	RETVAL	2065	RETVAL
1168		2066
1169	int	2067	int
1170	nready()	2068	nready ()
1171	PROTOTYPE:
1172	CODE:	2069	CODE:
1173	RETVAL = eio_nready ();	2070	RETVAL = eio_nready ();
1174	OUTPUT:	2071	OUTPUT:
1175	RETVAL	2072	RETVAL
1176		2073
1177	int	2074	int
1178	npending()	2075	npending ()
1179	PROTOTYPE:
1180	CODE:	2076	CODE:
1181	RETVAL = eio_npending ();	2077	RETVAL = eio_npending ();
1182	OUTPUT:	2078	OUTPUT:
1183	RETVAL	2079	RETVAL
1184		2080
1185	int	2081	int
1186	nthreads()	2082	nthreads ()
1187	PROTOTYPE:
1188	CODE:	2083	CODE:
1189	RETVAL = eio_nthreads ();	2084	RETVAL = eio_nthreads ();
1190	OUTPUT:	2085	OUTPUT:
1191	RETVAL	2086	RETVAL
1192		2087
1193	int	2088	int
1194	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	2089	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1195	PROTOTYPE: $$$$
1196	CODE:	2090	CODE:
1197	{
1198	#if _XOPEN_SOURCE >= 600
1199	RETVAL = posix_fadvise (fh, offset, length, advice);	2091	RETVAL = posix_fadvise (fh, offset, length, advice);
1200	#else
1201	RETVAL = errno = ENOSYS;
1202	#endif
1203	}
1204	OUTPUT:	2092	OUTPUT:
1205	RETVAL	2093	RETVAL
1206		2094
1207	ssize_t	2095	IV
1208	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2096	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1209	PROTOTYPE: $$$$
1210	CODE:	2097	CODE:
1211	eio_sendfile_sync (ofh, ifh, offset, count);	2098	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2099	OUTPUT:
		2100	RETVAL
		2101
		2102	void
		2103	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2104	PPCODE:
		2105	sv_clear_foreign (scalar);
		2106	{
		2107	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2108	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2109	if (addr == (void *)-1)
		2110	XSRETURN_NO;
		2111
		2112	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2113
		2114	if (!(prot & PROT_WRITE))
		2115	SvREADONLY_on (scalar);
		2116
		2117	XSRETURN_YES;
		2118	}
		2119
		2120	void
		2121	munmap (SV *scalar)
		2122	CODE:
		2123	sv_clear_foreign (scalar);
		2124
		2125	SV *
		2126	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2127	CODE:
		2128	{
		2129	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2130	void *new;
		2131
		2132	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2133	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2134
		2135	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2136
		2137	RETVAL = &PL_sv_no;
		2138
		2139	if (new != (void *)-1)
		2140	{
		2141	RETVAL = new == (void *)mg->mg_ptr
		2142	? newSVpvn ("0 but true", 10)
		2143	: &PL_sv_yes;
		2144
		2145	mg->mg_ptr = (char *)new;
		2146	mg->mg_obj = (SV *)new_length;
		2147
		2148	SvPVX (scalar) = mg->mg_ptr;
		2149	SvCUR_set (scalar, new_length);
		2150	}
		2151	}
		2152	OUTPUT:
		2153	RETVAL
		2154
		2155	int
		2156	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2157	ALIAS:
		2158	mprotect = 1
		2159	CODE:
		2160	{
		2161	STRLEN svlen;
		2162	void *addr = SvPVbyte (scalar, svlen);
		2163	STRLEN len = SvUV (length);
		2164
		2165	if (offset < 0)
		2166	offset += svlen;
		2167
		2168	if (offset < 0 || offset > svlen)
		2169	croak ("offset outside of scalar");
		2170
		2171	if (!SvOK (length) || len + offset > svlen)
		2172	len = svlen - offset;
		2173
		2174	addr = (void *)(((intptr_t)addr) + offset);
		2175	eio_page_align (&addr, &len);
		2176
		2177	switch (ix)
		2178	{
		2179	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2180	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2181	}
		2182	}
		2183	OUTPUT:
		2184	RETVAL
		2185
		2186	int
		2187	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2188	CODE:
		2189	{
		2190	STRLEN svlen;
		2191	void *addr = SvPVbyte (scalar, svlen);
		2192	size_t len = SvUV (length);
		2193
		2194	if (offset < 0)
		2195	offset += svlen;
		2196
		2197	if (offset < 0 || offset > svlen)
		2198	croak ("offset outside of scalar");
		2199
		2200	if (!SvOK (length) || len + offset > svlen)
		2201	len = svlen - offset;
		2202
		2203	addr = (void *)(((intptr_t)addr) + offset);
		2204	eio_page_align (&addr, &len);
		2205	#if _POSIX_MEMLOCK_RANGE
		2206	RETVAL = munlock (addr, len);
		2207	#else
		2208	RETVAL = EIO_ENOSYS ();
		2209	#endif
		2210	}
		2211	OUTPUT:
		2212	RETVAL
		2213
		2214	int
		2215	munlockall ()
		2216	CODE:
		2217	#if _POSIX_MEMLOCK
		2218	munlockall ();
		2219	#else
		2220	RETVAL = EIO_ENOSYS ();
		2221	#endif
		2222	OUTPUT:
		2223	RETVAL
		2224
		2225	int
		2226	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2227	CODE:
		2228	{
		2229	#if HAVE_LINUX_SPLICE
		2230	loff_t off_in_, off_out_;
		2231	RETVAL = splice (
		2232	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2233	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2234	length, flags
		2235	);
		2236	#else
		2237	RETVAL = EIO_ENOSYS ();
		2238	#endif
		2239	}
		2240	OUTPUT:
		2241	RETVAL
		2242
		2243	int
		2244	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2245	CODE:
		2246	#if HAVE_LINUX_SPLICE
		2247	RETVAL = tee (rfh, wfh, length, flags);
		2248	#else
		2249	RETVAL = EIO_ENOSYS ();
		2250	#endif
		2251	OUTPUT:
		2252	RETVAL
		2253
		2254	int
		2255	pipesize (aio_rfd rfh, int new_size = -1)
		2256	PROTOTYPE: $;$
		2257	CODE:
		2258	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2259	if (new_size >= 0)
		2260	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2261	else
		2262	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2263	#else
		2264	errno = ENOSYS;
		2265	RETVAL = -1;
		2266	#endif
		2267	OUTPUT:
		2268	RETVAL
		2269
		2270	void
		2271	pipe2 (int flags = 0)
		2272	PROTOTYPE: ;$
		2273	PPCODE:
		2274	{
		2275	int fd[2];
		2276	int res;
		2277
		2278	if (flags)
		2279	#if HAVE_PIPE2
		2280	res = pipe2 (fd, flags);
		2281	#else
		2282	res = (errno = ENOSYS, -1);
		2283	#endif
		2284	else
		2285	res = pipe (fd);
		2286
		2287	if (!res)
		2288	{
		2289	EXTEND (SP, 2);
		2290	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2291	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2292	}
		2293	}
		2294
		2295	void
		2296	eventfd (unsigned int initval = 0, int flags = 0)
		2297	PPCODE:
		2298	{
		2299	int fd;
		2300	#if HAVE_EVENTFD
		2301	fd = eventfd (initval, flags);
		2302	#else
		2303	fd = (errno = ENOSYS, -1);
		2304	#endif
		2305
		2306	XPUSHs (newmortalFH (fd, O_RDWR));
		2307	}
		2308
		2309	void
		2310	timerfd_create (int clockid, int flags = 0)
		2311	PPCODE:
		2312	{
		2313	int fd;
		2314	#if HAVE_TIMERFD
		2315	fd = timerfd_create (clockid, flags);
		2316	#else
		2317	fd = (errno = ENOSYS, -1);
		2318	#endif
		2319
		2320	XPUSHs (newmortalFH (fd, O_RDWR));
		2321	}
		2322
		2323	void
		2324	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2325	PPCODE:
		2326	{
		2327	int fd = s_fileno_croak (fh, 0);
		2328	#if HAVE_TIMERFD
		2329	int res;
		2330	struct itimerspec its, ots;
		2331
		2332	ts_set (&its.it_interval, interval);
		2333	ts_set (&its.it_value , value);
		2334	res = timerfd_settime (fd, flags, &its, &ots);
		2335
		2336	if (!res)
		2337	{
		2338	EXTEND (SP, 2);
		2339	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2340	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2341	}
		2342	#else
		2343	errno = ENOSYS;
		2344	#endif
		2345	}
		2346
		2347	void
		2348	timerfd_gettime (SV *fh)
		2349	PPCODE:
		2350	{
		2351	int fd = s_fileno_croak (fh, 0);
		2352	#if HAVE_TIMERFD
		2353	int res;
		2354	struct itimerspec ots;
		2355	res = timerfd_gettime (fd, &ots);
		2356
		2357	if (!res)
		2358	{
		2359	EXTEND (SP, 2);
		2360	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2361	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2362	}
		2363	#else
		2364	errno = ENOSYS;
		2365	#endif
		2366	}
		2367
		2368	UV
		2369	get_fdlimit ()
		2370	CODE:
		2371	#if HAVE_RLIMITS
		2372	struct rlimit rl;
		2373	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2374	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2375	#endif
		2376	XSRETURN_UNDEF;
		2377	OUTPUT:
		2378	RETVAL
		2379
		2380	void
		2381	min_fdlimit (UV limit = 0x7fffffffU)
		2382	CODE:
		2383	{
		2384	#if HAVE_RLIMITS
		2385	struct rlimit rl;
		2386	rlim_t orig_rlim_max;
		2387	UV bit;
		2388
		2389	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2390	goto fail;
		2391
		2392	if (rl.rlim_cur == RLIM_INFINITY)
		2393	XSRETURN_YES;
		2394
		2395	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2396
		2397	if (rl.rlim_cur < limit)
		2398	{
		2399	rl.rlim_cur = limit;
		2400
		2401	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2402	rl.rlim_max = rl.rlim_cur;
		2403	}
		2404
		2405	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2406	XSRETURN_YES;
		2407
		2408	if (errno == EPERM)
		2409	{
		2410	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2411	/* our limit overflows a system-wide limit */
		2412	/* try an adaptive algorithm, but do not lower the hardlimit */
		2413	rl.rlim_max = 0;
		2414	for (bit = 0x40000000U; bit; bit >>= 1)
		2415	{
		2416	rl.rlim_max |= bit;
		2417	rl.rlim_cur = rl.rlim_max;
		2418
		2419	/* nevr decrease the hard limit */
		2420	if (rl.rlim_max < orig_rlim_max)
		2421	break;
		2422
		2423	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2424	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2425	}
		2426
		2427	/* now, raise the soft limit to the max permitted */
		2428	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2429	{
		2430	rl.rlim_cur = rl.rlim_max;
		2431	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2432	errno = EPERM;
		2433	}
		2434	}
		2435	#endif
		2436	fail:
		2437	XSRETURN_UNDEF;
		2438	}
1212		2439
1213	void _on_next_submit (SV *cb)	2440	void _on_next_submit (SV *cb)
1214	CODE:	2441	CODE:
1215	SvREFCNT_dec (on_next_submit);	2442	SvREFCNT_dec (on_next_submit);
1216	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2443	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1217		2444
1218	PROTOTYPES: DISABLE	2445	PROTOTYPES: DISABLE
1219		2446
		2447	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2448
		2449	BOOT:
		2450	{
		2451	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2452	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2453	}
		2454
		2455	void
		2456	DESTROY (SV *self)
		2457	CODE:
		2458	{
		2459	aio_wd wd = SvAIO_WD (self);
		2460	#if HAVE_AT
		2461	{
		2462	SV *callback = &PL_sv_undef;
		2463	dREQ; /* clobbers next_pri :/ */
		2464	next_pri = req->pri; /* restore next_pri */
		2465	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2466	req->type = EIO_WD_CLOSE;
		2467	req->wd = wd;
		2468	REQ_SEND;
		2469	}
		2470	#else
		2471	eio_wd_close_sync (wd);
		2472	#endif
		2473	}
		2474
1220	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2475	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1221		2476
1222	void	2477	void
1223	cancel (aio_req_ornot req)	2478	cancel (aio_req_ornot req)
1224	CODE:	2479	CODE:
1225	eio_cancel (req);	2480	eio_cancel (req);
1226		2481
1227	void	2482	void
1228	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2483	cb (aio_req_ornot req, SV *callback = NO_INIT)
1229	PPCODE:	2484	PPCODE:
1230	{	2485	{
1231	if (GIMME_V != G_VOID)	2486	if (GIMME_V != G_VOID)
1232	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2487	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1233		2488
…		…
1298	limit (aio_req grp, int limit)	2553	limit (aio_req grp, int limit)
1299	CODE:	2554	CODE:
1300	eio_grp_limit (grp, limit);	2555	eio_grp_limit (grp, limit);
1301		2556
1302	void	2557	void
1303	feed (aio_req grp, SV *callback=&PL_sv_undef)	2558	feed (aio_req grp, SV *callback = &PL_sv_undef)
1304	CODE:	2559	CODE:
1305	{	2560	{
1306	SvREFCNT_dec (grp->sv2);	2561	SvREFCNT_dec (grp->sv2);
1307	grp->sv2 = newSVsv (callback);	2562	grp->sv2 = newSVsv (callback);
1308	grp->feed = aio_grp_feed;	2563	grp->feed = aio_grp_feed;

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